Homeland Security Presidential Directive
(HSPD) One of a series of directives dealing with homeland security and issued by the President of the United States. This series of directives began on October 29, 2001 with the issuance of HSPD-1, establishing the organization and operation of the Homeland Security Council, and HSPD-2, establishing the Foreign Terrorist Tracking Task Force and increasing immigration vigilance.

Source:
http://www.dhs.gov/interweb/assetlibrary/book.pdf